Performance comparison of various CMOS full adders

In this paper a low complexity full adder is proposed. 1-bit full adders perform addition among 3 input bits and give sum and carry outputs. In VLSI circuits, such as video processing, digital signal processing, and microprocessors uses arithmetic operations which are performed by full adder. Full adder is the fundamental block of enhancing the overall performance of the processors. In this paper, a low complexity full adder with 10 transistors hybrid adder featuring level restoring, high computing speed and low energy consumption is proposed. Simulation is carried at 130nm technology using mentor graphics tool. The result is compared with 14 transistors, 10 transistors full adder.